.normal-header {
    position: fixed;
    width: 100%;
    top: 0;
    left: 0;
    height: 56px;
    line-height: 56px;
    background: #2a2a2a;
    color: white;
    display: flex;
    justify-content: space-between;
    box-sizing: border-box;
    padding: 0 7.5px;
    z-index: 30;
    i {
        min-width: 24px;
    }
}